MCQ
In the half wave rectifier circuit operating from $50\, Hz$ mains frequency, the fundamental frequency in the ripple would be......$ Hz$
- A$25$
- ✓$50$
- C$70.7$
- D$100$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$Statement$ $I$ : Most of the mass of the atom and all its positive charge are concentrated in a tiny nucleus and the electrons revolve around it, is Rutherford's model.
$Statement$ $II$ : An atom is a spherical cloud of positive charges with electrons embedded in it, is a special case of Rutherford's model.
In the light of the above statements, choose the most appropriate from the options given below.
$(A)$ Gamma rays $\left(\lambda_1\right)$
$(B)$ x-ray $\left(\lambda_2\right)$
$(C)$ Infrared waves $\left(\lambda_3\right)$
$(D)$ Microwaves $\left(\lambda_4\right)$
Choose the most appropriate answer from the options given below :